Linked Life Data

17497819

Source:http://linkedlifedata.com/resource/pubmed/id/17497819

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-6-13
pubmed:abstractText
We employ scanning probe microscopy to reveal atomic structures and nanoscale morphology of graphene-based electronic devices (i.e., a graphene sheet supported by an insulating silicon dioxide substrate) for the first time. Atomic resolution scanning tunneling microscopy images reveal the presence of a strong spatially dependent perturbation, which breaks the hexagonal lattice symmetry of the graphitic lattice. Structural corrugations of the graphene sheet partially conform to the underlying silicon oxide substrate. These effects are obscured or modified on graphene devices processed with normal lithographic methods, as they are covered with a layer of photoresist residue. We enable our experiments by a novel cleaning process to produce atomically clean graphene sheets.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1530-6984
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1643-8
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Atomic structure of graphene on SiO2.
pubmed:affiliation
Materials Research Science and Engineering Center, Department of Physics, University of Maryland, College Park, Maryland 20742, USA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, Non-P.H.S.